How to Wxtrude PPS Plastics Sheet Bar Sheet

Polyphenylene sulfide is a white powder with an average molecular weight of 0.4-0.5 million and a density of 1.3-1.8g/cm3. Polyparaphenylene sulfide has excellent thermal properties. After adding Glass Fiber, its thermal performance index is higher. The mechanical properties of glass fibers, carbon fibers and fillers were enhanced under the thermal aging condition of 232 °C for 5000 h. Modified polyphenylene sulfide can maintain high mechanical properties and dimensional stability under long-term working load and thermal load, and can be used in high temperature environment.

The polyphenylene sulfide has the advantages of low dielectric constant, low dielectric loss, and insensitivity to frequency, temperature and humidity changes. It is an excellent electrical insulating material with long arc resistance and good chemical stability of polyphenylene sulfide. Except for strong oxidizing acids such as concentrated sulfuric acid, concentrated nitric acid, and aqua regia, most acid-base salts corrode Not big, close to the chemical stability of PTFE. Insoluble in any known organic solvent at **175°C, plastic cracking does not occur in contact with poly(p-phenylene sulfide) and common organic solvents. Chemical resistance: No solvent has been found to dissolve polyphenylene sulfide below 200 degrees Celsius, and it has strong corrosion resistance to inorganic acids, alkalis and salts. Anti-chlorinated biphenyl and oxidizing acid, oxidant, aqua regia, hydrogen peroxide and sodium hypochlorite, etc. Pps has good radiation resistance, reaching gy1×108. This is an unparalleled new Engineering Plastic.

It is widely used in electronics, electricity, machinery, instruments, aviation, aerospace, military and other fields, especially in the fields of atomic bombs and neutron bombs. It is an ideal radiation protection material. Poly(p-phenylene sulfide) is chemically stable and contains the flame retardant element sulfur, which gives it excellent flame retardancy. Ignite the sample, adjust the flow of oxygen and nitrogen, and observe the combustion. The oxygen concentration that keeps the sample burning is the oxygen limit index. The higher the oxygen index, the better the flame retardant performance. Pure polyphenylene sulfide has a limiting oxygen index of up to 44 and excellent fire resistance. Polyphenylene sulfide (p-phenylenesulfide) containing fillers or glass fibers has a high oxygen limiting index and good flame retardancy. When the thickness of polyphenylene sulfide is 0.8mm, it can pass ul-94v0. Basically, except for a few grades, such as the toughness series, the ul94 flammability of all grades of pps is v-0, which is already a better grade of ul94 flammability. *Toughened series polyphenylene sulfide contains a variety of toughening agents, but sacrifices some fire resistance properties. Poly(p-phenylene sulfide) and poly(p-phenylene sulfide) without conductive additives provide excellent electrical insulation. Carbon fiber polyphenylene sulfide has a low volume drag coefficient.

Physical properties

Excellent electrical insulation (especially high-frequency insulation), white hard and brittle, floor metal sound, light transmittance second only to plexiglass, sewage resistance, and good chemical stability. Excellent flame retardancy, non-flammable plastic.Generally, it has good strength and rigidity, but it is brittle and prone to stress brittle cracks; it is not resistant to organic solvents such as benzene and gasoline; the long-term use temperature can reach 260 degrees, and it is stable in air or nitrogen at 400 degrees.

By adding glass fiber or other reinforcing materials, the mechanical properties such as impact strength and heat resistance of the material can be greatly improved, the density can be increased to 1.6-1.9, and the molding shrinkage rate can be reduced to 0.15-0.25%, suitable for manufacturing heat-resistant parts, Insulation parts, chemical instruments, optical instruments and other parts.

Formability

1. Amorphous material, low hygroscopicity, but should be dry after forming.

2. Good fluidity between abs and pc, fast curing, shrinkage, easy to decompose, choose high injection pressure and injection speed. The mold temperature is 100-150 degrees. The taper of the sprue should be large and the runner should be short. Scope of application: It can be used to make poly(p-phenylene sulfide) pipes, poly(p-phenylene sulfide) sheets and other materials, mainly used in construction and home furnishing.

We have a wide range of engineering plastics for sale. Peek Plastic Rod, PEI Plastic Rod. Recently, a new product, Glass Fiber, is on sale. It is a special material that supports cutting and size customization. 3K Carbon Fiber Tube can also be cut, in a variety of specifications and colors. The popular PEEK Plastic Sheet is also available.